diff --git a/src/ce_dubprojeditor.lfm b/src/ce_dubprojeditor.lfm
index e2c51735..7cce005e 100644
--- a/src/ce_dubprojeditor.lfm
+++ b/src/ce_dubprojeditor.lfm
@@ -98,6 +98,7 @@ inherited CEDubProjectEditorWidget: TCEDubProjectEditorWidget
             TabOrder = 0
             OnSelectionChanged = propTreeSelectionChanged
             Options = [tvoAutoItemHeight, tvoKeepCollapsedNodes, tvoReadOnly, tvoShowButtons, tvoShowLines, tvoShowRoot, tvoToolTips, tvoThemedDraw]
+            TreeLinePenStyle = psClear
           end
           object pnlToolBar: TPanel
             Left = 4
diff --git a/src/ce_miniexplorer.lfm b/src/ce_miniexplorer.lfm
index 855bf93b..c70dd7e5 100644
--- a/src/ce_miniexplorer.lfm
+++ b/src/ce_miniexplorer.lfm
@@ -67,6 +67,7 @@ inherited CEMiniExplorerWidget: TCEMiniExplorerWidget
           ScrollBars = ssAutoBoth
           TabOrder = 0
           Options = [tvoAutoItemHeight, tvoHideSelection, tvoKeepCollapsedNodes, tvoReadOnly, tvoShowButtons, tvoShowLines, tvoShowRoot, tvoToolTips, tvoThemedDraw]
+          TreeLinePenStyle = psClear
         end
         object Splitter2: TSplitter
           Cursor = crVSplit
diff --git a/src/ce_symlist.lfm b/src/ce_symlist.lfm
index d397d870..f5fff9bd 100644
--- a/src/ce_symlist.lfm
+++ b/src/ce_symlist.lfm
@@ -52,8 +52,7 @@ inherited CESymbolListWidget: TCESymbolListWidget
           00000000000000080000005761726E696E67730A0000000A0000000A000000FF
           FFFFFF000000000000000000060000004572726F7273
         }
-        TreeLineColor = 14671839
-        TreeLinePenStyle = psSolid
+        TreeLineColor = clDefault
       end
       object Panel1: TPanel[1]
         Left = 2